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GA3544 Flyback Transformer

for TI UCD3K Digital Power Controller

  • Specified by Texas Instruments for use in the Bias Power Supply for their UCD3K Digital Power Controller
  • Designed to meet UL/CSA/IEC 60950 Reinforced Insulation Class; 3 mm creepage/clearance
Buy Now:
Count Unit price
1 $4.33
200 $3.46
600 $3.01
1200 $2.62
2400 $2.25
5000 $2.06

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
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Typical Application

Works with Texas Instruments UCD3K

AC Input Voltage Output Power Fsw
S1 Sense
85 V 265 V 12 V , 0.2 A 12 V , 0.2 A 5 W 100 kHz

Specifications

Electrical specifications at 25°C.

Part number Inductance
at 0A (mH) 1
(Tolerance: ±10%)
Inductance
min at   0.3 A (mH)
DCR max (Ω) 2 Leakage
Inductance
max (µH) 3
Turns Ratio Isolation
Voltage (Vrms) 4
Pri S1 Sense P1 Pri : S1 : Sense : P1
GA3544-BL 2.3 1.6 0.860 0.109 0.155 0.131 17.6 1 : 0.158 : 0.079 : 0.158 3000
Notes
  1. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/ HP 4263B impedance analyzer or equivalent.
  2. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  3. Leakage inductance is for the primary and is measured with the secondary shorted.
  4. Isolation: 3000 Vrms, one minute Pri and P1 to S1 and Sense; 1500 Vrms all windings to core

Termination:

  • RoHS-compliant. Tin-silver (96.5/3.5) over tin over copper terminations.
Environmental
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: –40°C to +85°C.
Tray packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

ga3544s.gif

Physical characteristics

ga3544d.gif

dims_inches_mm-(5).gif

General specification

Core Material:
Ferrite
Weight:
13.4 g
Packaging:
Packaged 100 per tray

Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
PCB Washing:
Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf.